Ments



No. 749,232. PATENTBD JAN. 12, 1904. E. SHAW. NOZZLE FOR DISGHARGING LIQUIDSV APPLIGATION FILED DBO. 1B- 1902.

4 SHEETS-$31531 1.

N0 MODEL.

PATENTED JAN. 12, 1904.

E. SHAW. NOZZLE FOR DISGHARGING LIQUIDS.

APPLICATION FILED D3018. 1902.

4 SHEETS-SHEET 2.

N0 MODEL.

PATENTED JAN. 12, 1904;

E. SHAW. NOZZLE FOR DISGHARGIHG LIQUIDS.

APPLICATION FILED DBO.1B, 1902.

4 SHEETS-SHEIIT 3.

H0 MODEL.

PATE NTED JAN. 12, 1904.

- B. SHAW.

' NOZZLE FOR DISGHARGING LIQUIDS.

APPLICATION FILED DEO.18. 1902.

4 SHEETS-SHEET 4.

N0 MODEL.

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UNITED STATES Patented January 12, 1904.

PATENT OFFIC EDWARD SHAW, OF LONDON, ENGLAND, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO AMERICAN STREET FLUSHING MACHINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION.

NOZZLE FOR DISCHARGINGLIQUIDS.

SPECIFIGATION forming part of Letters Patent No. 749,232, dated January 12, 1904. Application filed December 18,1902. Serial No. 135,815. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD SHAW, a subject of the King of Great Britain and Ireland, residing in the city of London, England, have invented Improvements in Nozzles for Discharging Liquids, of which the following is a specification. I

This invention has reference to improvements in liquid-discharging nozzles herein- I after set forth, and more particularly specified in the claims, objects being to provide a .nozzle whereby liquid can be delivered in a more or less flat sheet-like form and to enable the thickness of the liquid sheet to be varied 5 as may be desired.

With the object of enabling a nozzle to deliver liquid in a more or less flat sheet-like form the passage through it is made of gradually-increasing width and decreasing depth or thickness from the inlet to the outlet of the nozzle, the. nozzle being so constructed that the cross-sectional area of its passage decreases from the inlet to the outlet in such wise as to increase to the required extent the velocity of 2 5 the liquid issuing from the wide shallow outlet end of the nozzle. With the object of enabling the liquid shee to be varied in thickness the walls of the passage through the nozzle, which are of increas- 3 ing width toward its outlet, are adjustable relatively to each other.

In the accompanying drawings, Figure 1 is a plan; Fig. 2, a front view, partly in section; and Fig. 3, a section on the line A A, Fig. l. Fig. 4: is a side elevation of a nozzle embodying my invention. Fig. 5 isa detail sectional View showing the water-tight joint between the movable top plate 61 and the side walls f on the line B B of Fig. 4. 7

The nozzle is in the form of a fan-shaped box or chamber a, merging at its narrow end into a tubular inlet 6. The bottom 0 is flat, and the top 01 is upwardly curved to a gradually-decreasing radius toward the inlet. The

top plate or cover d of the box or chamber may be secured in a water-tight manner to the inlet portion of the nozzle by screws 6, as shown, and adapted to fit between the side walls f of the nozzle. 9 is rubber packing. The wide forward end of this plate or cover 0? 5 may be caused to approach or recede from the bottom of the nozzlefor instance, by the manipulation of screws it, that are held longitudinally in slotted tubular lugs 71, formed on or in the side walls f and that engage corresphdingly-threaded lateral extensions j, projecting from the top plate or cover d into the lugs through the slots in. A water-tight joint may be made between the top plate or cover cl and each side wall f in any convenient mannerfor instance, by means of a rubber-or leather strip Z, secured upon the top plate or cover and expanded against the side wall by a metal clamping-bar m.

The outlet-aperture n of the nozzle is curved 5 to a radius struck from a point 0 within the inlet portion 6 of the nozzle, the side walls f of which are in planes radial thereto.

Nozzles according to this invention are specially suitable for use with street watering and washing apparatus of the kind in which the water is discharged from a reservoir under air-pressure.

What I claim is 1. A liquid-discharge nozzle comprising a fan-shaped chamber with an inlet and an outlet and having its bottom fan-shaped wall flat and its top fan-shaped wall curved outwardly from the bottom toward the inlet and movable toward and from the bottom, and means for making a water-tight joint between said movable top Wall and the side walls of the chamber, substantially as described.

2. A liquid-discharging nozzle comprising a fan-shaped chamber with an inlet and an 5 outlet and having its bottom fan-shaped wall flat and its top fan-shaped wall curved outwardly from the bottom toward the inlet and Signed at 75-77 Cornhill, London, England, this 28th day of November, 1902.

EDWARD SHAW.

Witnesses:

PERCY E. MATTOCKS, HENRY MAYKELS. 

